Outline Genetics III - APGenetics...

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AP Genetics Chromosomal Basis of Inheritance I. Chromosome Theory of Inheritance     II. chromosomes undergo segregation and independent assortment in meiosis III. Morgan’s Scientific Evidence      a. T.H. Morgan working with  Drosophilia melanogaster  was the first to identify a  specific gene with a specific chromosome b. wild type  identified as the normal phenotype found most commonly in nature c. Morgan deduced that the gene for eye color was located only on the X  chromosome    sex linked trait IV. Linked Genes/ Linkage Groups     a. genes located on the same chromosome are called  linked   genes V. Sex-Linkage      a. genes located on the sex chromosomes are sex-linked genes  i. these genes are for traits NOT related to gender b. X-linked recessive disorders have a much higher incidence in males  i. can have  female carriers  but no male carriers Sex-Linked Disorders in Humans ii. Duchenne Muscular Dystrophy o results from the lack of a key muscle protein o symptoms: muscle weakness develops early and progressively  intensifies until death occurs usually before age 20
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This note was uploaded on 03/03/2010 for the course AP BIO AP BIO taught by Professor Apbioteacher during the Spring '09 term at École Normale Supérieure.

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Outline Genetics III - APGenetics...

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